Wheel



(No Model.)

P. H. OUMMINS.

' WHEEL.

Patented Oct. 21

1.7V VEJV TOR WWW K Attorney WITNESSES- UNITED STATES PATENT OEFIcE.

PATRICK HENRY CUMMINS, OF AMSTERDAM, NEYV YORK.

WHEEL.

SPECIFICATION forming part of Letters Patent No. 307,021, dated October21, 1884.

Application filed May 21. 1884. (X model.)

To all whom it may concern/.-

' of Amsterdam, in the county of Montgomery and State of New York, haveinvented certain new and useful Improvements in Wheels; and I do herebydeclare that the following is a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form part of thisspecification, in which Figure l is a diametrical section through myimproved wheel. Figs. 2, 3, and 4 represent the hub-sections and thespreader detached. Fig.5 is a face view of a hub-section, showing itsrecesses. Fig. 6 is an inside view of a clamping-ring.

This invention relates to improvements on metal wheels which arerequired to be made very light and at the same time very stiff andstrong; and it consists in a novel construct-ion of the hub, whereby allof the spokes of the wheel can be readily tightened at any time, as willbe fully understoodfrom the following description, when taken inconnection with the annexed drawings.

My improved wheel-hub is composed of two circular hub-sections, A A, incombination with means for spreading them apart for the purpose oftightening the spokes. Each hubsection A consists of a dished disk, a,formed on a tubular axle, Z). It will be observed that the inner part ofthe axle has a much larger bore than the outer or journal portion, theobject of which will be hereinafter explained. The outer face of eachdisk a is formed with an annular shoulder, c, and also with recesses (1,adapted to receive corresponding enlargements, e, on the inner ends ofthe hub-sections. Each hub-section A is provided with a ring-clamp, B,which has tapered recesses d in it, corresponding to the recesses d inthe main part of each section A.

O designates a tubular or solid spreader,

it, adapted to enter the enlarged portions of the axles b, which havefemale screwthreads in them. The spreader O connects the twohub-sections together, and it also allows these sections to be forciblyspread apart by the use of a wrench.

' D designates the metal rim of the wheel,

which is circumfercntially grooved, as shown, to receive a suitablehand. To this rim the outer ends of the wire rods or spokes E areproperly secured.

It will be seen that by turning the spread er 0 the hubsections can beforcibly separated and the spokes tightened. It will also be seen thatthe bore of the spreader is of greater diameter than the bore of thejournal portions of the axle. Consequently, if it is desired to use aseparate fixed axle, the latter will not touch the spreader, and ofcourse it will not unscrew it.

Having described my invention, I claim- The combination, in a wheel,with the hubsections secured to the spokes, extending alternately toopposite sides of the tire, the said sections having central openingsfor the passage of a shaft, and larger openings which are screw-tappedright and left, of a tubular spreader of greater internal diameter thanthe journal-openings for the shaft, the spreader being externallyscrew-threaded at the ends, and adapted to fit the larger openings ofthe hub-sections, whereby said sections may be adjusted to tighten thespokes, while the spreader is permitted to rotate clear of the shaft,substantially as specified.

In testimony that I- claim the foregoing as my own I affix my signaturein presence of two witnesses.

PATRICK HENRY CUMMINS.

lVitnesses:

HENRY MoNIEL, M. WEMPLE.

' which has right and left screw-threads cast on 5

